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The eleven tooth upper and lower pulleys with 5mm bolt-holes are designed as a direct upgrade for 12 speed Dura Ace Shimano derailleurs
• Thread pitch of 12 threads per inch (TPI)
Machined Delrin Derailleur Pulleys for Campagnolo Derailleurs (5mm bolt)
Angular Contact Bearing Bottom Bracket for T47 Framesets and 30mm Cranksets (for older specification spindles under 90mm wide)
Four double-sided receiver cups covering bearing ODs from 12mm to 32mm
CXD DR 152610 LLB - XD15 Ceramic-Hybrid, Double-Row, Angular-Contact Bearing (CN Clearance) - 15mm x 26mm x 10mm 428420 The eleven tooth upper andCXD DR 152610 LLB XD15 Ceramic Hybrid, Double Row, Angular Contact Bearing (CN clearance) 15mm x 26mm x 10mm The ultimate upgrade An Enduro Bearings exclusive, our XD15 Ceramic Hybrid bearings combine corrosion proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 5 ceramic balls in a proprietary process that results in the ultimate high performance bearing setup. The deep groove design raceways allow for maximum sized Grade 5
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